相关实验视频
Updated: Jul 5, 2025

10:40
CRISPR Gene Editing Tool for MicroRNA Cluster Network Analysis
Published on: April 25, 2022
2.4K
piOxi数据库:通过化学氧化识别的生殖线和体组织piRNA的网络资源
Kai Wang, Bambarendage P U Perera1, Rachel K Morgan1
1Department of Environmental Health Sciences, School of Public Health, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109, USA.
Database : the journal of biological databases and curation
|January 11, 2024
概括
与PIWI相互作用的RNAs (piRNAs) 对基因组稳定性至关重要. 一个新的数据库,piOxi DB,使用化学氧化方法独特地识别piRNA,为各种研究提供全面的生殖系和体质数据.
科学领域:
- 在RNA生物学,RNA生物学.
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
背景情况:
- PIWI相互作用RNAs (piRNAs) 是小的非编码RNAs,对于生殖基因组稳定性至关重要.
- piRNAs维持DNA甲基化,用于转子子沉默和基因调节.
- 人体piRNAs的理解较少,尽管最近有证据表明它们的表达和潜在的组织特异性作用.
研究的目的:
- 介绍piOxi DB,这是一个用于全面piRNA分析的新型网络资源.
- 提供一个用户友好的平台,通过特定的化学氧化方法来访问通过特定的piRNA数据.
- 促进RNA生物学,癌症生物学和环境毒理学的研究.
主要方法:
- 利用周期性处理来化学氧化小RNA以检测piRNAs.
- 综合下一代测序和生物信息学分析,用于严格的数据处理.
- 开发了一个基于网络的数据库 (piOxi DB) 用于全面的piRNA数据分析.
主要成果:
- piOxi DB包含来自M. musculus,M. fascicularis和H. sapiens的435,749个生殖系和9,828个体质piRNA序列.
- 该数据库提供了物种和组织特定的piRNA数据,通过染色体位置和基因/重复元素对应进行分析.
- 化学氧化方法提供可复制和严格的piRNA识别.
结论:
- piOxi DB通过提供独特的数据集和分析方法来增强piRNA研究.
- 该数据库支持各种应用,包括对RNA生物学,癌症和毒理学的研究.
- 化学氧化方法是用于piRNA识别和表征的强有力的方法.
相关概念视频
piRNA - Piwi-interacting RNAs
6.9K
PIWI-interacting RNAs, or piRNAs, are the most abundant short non-coding RNAs. More than 20,000 genes have been found in humans that code for piRNAs while only 2000 genes have been found for miRNAs. piRNAs can act at the transcriptional and post-transcriptional levels and have a vital role in silencing transposable elements present in germ cells. They are also involved in epigenetic silencing and activation. Previously, they were thought to function only in germ cells but new evidence suggests...
6.9K
Experimental RNAi
6.1K
RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
6.1K
RNA Interference
26.0K
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
26.0K
siRNA - Small Interfering RNAs
16.8K
Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
16.8K

